Here's the story:
It’s about a girl named Lyra who is being chased by these nightmarish shadows in her dreams, and the imaginary friend from her childhood, Leo, comes to her aid. Except, Leo isn’t so imaginary, and the shadows aren’t just plain and harmless nightmares. Through a few scares and realizations, Lyra rediscovers what it means to believe like a child. Together with Leo, she fights back her fears.